Valve stem



FIG. 1 is a perspective view of a first embodiment of a valve stemshowing my new design;

FIG. 2 is a front elevation view of the valve stem of FIG. 1, the rearelevation view being identical thereto;

FIG. 3 is a right-side elevation of the valve stem of FIG. 1, theleft-side elevation view being identical thereto;

FIG. 4 is a top view of the valve stem of FIG. 1;

FIG. 5 is a bottom view of the valve stem of FIG. 1;

FIG. 6 is a perspective view of a second embodiment of a valve stemshowing my new design;

FIG. 7 is a front elevation view of the valve stem of FIG. 6, the rearelevation view being identical thereto;

FIG. 8 is a right-side elevation of the valve stem of FIG. 6, theleft-side elevation view being identical thereto;

FIG. 9 is a top view of the valve stem of FIG. 6; and,

FIG. 10 is a bottom view of the valve stem of FIG. 6.

The valve stem is shown with a symbolic break in its length. Theappearance of any portion of the article between the break lines formsno part of the claimed design.

CLAIM The ornamental design for a valve stem, as shown and described.